#ifndef __CRC64__
#define __CRC64__

#include "thisinc.h"

static uint64_t update_crc64(uint64_t CurCRC, const uint8_t * Buf, size_t BufSize)
{
	static uint64_t crctable[] =
	{
		0x0000000000000000LL,0x42F0E1EBA9EA3693LL,0x85E1C3D753D46D26LL,0xC711223CFA3E5BB5LL,0x493366450E42ECDFLL,0x0BC387AEA7A8DA4CLL,0xCCD2A5925D9681F9LL,0x8E224479F47CB76ALL,
		0x9266CC8A1C85D9BELL,0xD0962D61B56FEF2DLL,0x17870F5D4F51B498LL,0x5577EEB6E6BB820BLL,0xDB55AACF12C73561LL,0x99A54B24BB2D03F2LL,0x5EB4691841135847LL,0x1C4488F3E8F96ED4LL,
		0x663D78FF90E185EFLL,0x24CD9914390BB37CLL,0xE3DCBB28C335E8C9LL,0xA12C5AC36ADFDE5ALL,0x2F0E1EBA9EA36930LL,0x6DFEFF5137495FA3LL,0xAAEFDD6DCD770416LL,0xE81F3C86649D3285LL,
		0xF45BB4758C645C51LL,0xB6AB559E258E6AC2LL,0x71BA77A2DFB03177LL,0x334A9649765A07E4LL,0xBD68D2308226B08ELL,0xFF9833DB2BCC861DLL,0x388911E7D1F2DDA8LL,0x7A79F00C7818EB3BLL,
		0xCC7AF1FF21C30BDELL,0x8E8A101488293D4DLL,0x499B3228721766F8LL,0x0B6BD3C3DBFD506BLL,0x854997BA2F81E701LL,0xC7B97651866BD192LL,0x00A8546D7C558A27LL,0x4258B586D5BFBCB4LL,
		0x5E1C3D753D46D260LL,0x1CECDC9E94ACE4F3LL,0xDBFDFEA26E92BF46LL,0x990D1F49C77889D5LL,0x172F5B3033043EBFLL,0x55DFBADB9AEE082CLL,0x92CE98E760D05399LL,0xD03E790CC93A650ALL,
		0xAA478900B1228E31LL,0xE8B768EB18C8B8A2LL,0x2FA64AD7E2F6E317LL,0x6D56AB3C4B1CD584LL,0xE374EF45BF6062EELL,0xA1840EAE168A547DLL,0x66952C92ECB40FC8LL,0x2465CD79455E395BLL,
		0x3821458AADA7578FLL,0x7AD1A461044D611CLL,0xBDC0865DFE733AA9LL,0xFF3067B657990C3ALL,0x711223CFA3E5BB50LL,0x33E2C2240A0F8DC3LL,0xF4F3E018F031D676LL,0xB60301F359DBE0E5LL,
		0xDA050215EA6C212FLL,0x98F5E3FE438617BCLL,0x5FE4C1C2B9B84C09LL,0x1D14202910527A9ALL,0x93366450E42ECDF0LL,0xD1C685BB4DC4FB63LL,0x16D7A787B7FAA0D6LL,0x5427466C1E109645LL,
		0x4863CE9FF6E9F891LL,0x0A932F745F03CE02LL,0xCD820D48A53D95B7LL,0x8F72ECA30CD7A324LL,0x0150A8DAF8AB144ELL,0x43A04931514122DDLL,0x84B16B0DAB7F7968LL,0xC6418AE602954FFBLL,
		0xBC387AEA7A8DA4C0LL,0xFEC89B01D3679253LL,0x39D9B93D2959C9E6LL,0x7B2958D680B3FF75LL,0xF50B1CAF74CF481FLL,0xB7FBFD44DD257E8CLL,0x70EADF78271B2539LL,0x321A3E938EF113AALL,
		0x2E5EB66066087D7ELL,0x6CAE578BCFE24BEDLL,0xABBF75B735DC1058LL,0xE94F945C9C3626CBLL,0x676DD025684A91A1LL,0x259D31CEC1A0A732LL,0xE28C13F23B9EFC87LL,0xA07CF2199274CA14LL,
		0x167FF3EACBAF2AF1LL,0x548F120162451C62LL,0x939E303D987B47D7LL,0xD16ED1D631917144LL,0x5F4C95AFC5EDC62ELL,0x1DBC74446C07F0BDLL,0xDAAD56789639AB08LL,0x985DB7933FD39D9BLL,
		0x84193F60D72AF34FLL,0xC6E9DE8B7EC0C5DCLL,0x01F8FCB784FE9E69LL,0x43081D5C2D14A8FALL,0xCD2A5925D9681F90LL,0x8FDAB8CE70822903LL,0x48CB9AF28ABC72B6LL,0x0A3B7B1923564425LL,
		0x70428B155B4EAF1ELL,0x32B26AFEF2A4998DLL,0xF5A348C2089AC238LL,0xB753A929A170F4ABLL,0x3971ED50550C43C1LL,0x7B810CBBFCE67552LL,0xBC902E8706D82EE7LL,0xFE60CF6CAF321874LL,
		0xE224479F47CB76A0LL,0xA0D4A674EE214033LL,0x67C58448141F1B86LL,0x253565A3BDF52D15LL,0xAB1721DA49899A7FLL,0xE9E7C031E063ACECLL,0x2EF6E20D1A5DF759LL,0x6C0603E6B3B7C1CALL,
		0xF6FAE5C07D3274CDLL,0xB40A042BD4D8425ELL,0x731B26172EE619EBLL,0x31EBC7FC870C2F78LL,0xBFC9838573709812LL,0xFD39626EDA9AAE81LL,0x3A28405220A4F534LL,0x78D8A1B9894EC3A7LL,
		0x649C294A61B7AD73LL,0x266CC8A1C85D9BE0LL,0xE17DEA9D3263C055LL,0xA38D0B769B89F6C6LL,0x2DAF4F0F6FF541ACLL,0x6F5FAEE4C61F773FLL,0xA84E8CD83C212C8ALL,0xEABE6D3395CB1A19LL,
		0x90C79D3FEDD3F122LL,0xD2377CD44439C7B1LL,0x15265EE8BE079C04LL,0x57D6BF0317EDAA97LL,0xD9F4FB7AE3911DFDLL,0x9B041A914A7B2B6ELL,0x5C1538ADB04570DBLL,0x1EE5D94619AF4648LL,
		0x02A151B5F156289CLL,0x4051B05E58BC1E0FLL,0x87409262A28245BALL,0xC5B073890B687329LL,0x4B9237F0FF14C443LL,0x0962D61B56FEF2D0LL,0xCE73F427ACC0A965LL,0x8C8315CC052A9FF6LL,
		0x3A80143F5CF17F13LL,0x7870F5D4F51B4980LL,0xBF61D7E80F251235LL,0xFD913603A6CF24A6LL,0x73B3727A52B393CCLL,0x31439391FB59A55FLL,0xF652B1AD0167FEEALL,0xB4A25046A88DC879LL,
		0xA8E6D8B54074A6ADLL,0xEA16395EE99E903ELL,0x2D071B6213A0CB8BLL,0x6FF7FA89BA4AFD18LL,0xE1D5BEF04E364A72LL,0xA3255F1BE7DC7CE1LL,0x64347D271DE22754LL,0x26C49CCCB40811C7LL,
		0x5CBD6CC0CC10FAFCLL,0x1E4D8D2B65FACC6FLL,0xD95CAF179FC497DALL,0x9BAC4EFC362EA149LL,0x158E0A85C2521623LL,0x577EEB6E6BB820B0LL,0x906FC95291867B05LL,0xD29F28B9386C4D96LL,
		0xCEDBA04AD0952342LL,0x8C2B41A1797F15D1LL,0x4B3A639D83414E64LL,0x09CA82762AAB78F7LL,0x87E8C60FDED7CF9DLL,0xC51827E4773DF90ELL,0x020905D88D03A2BBLL,0x40F9E43324E99428LL,
		0x2CFFE7D5975E55E2LL,0x6E0F063E3EB46371LL,0xA91E2402C48A38C4LL,0xEBEEC5E96D600E57LL,0x65CC8190991CB93DLL,0x273C607B30F68FAELL,0xE02D4247CAC8D41BLL,0xA2DDA3AC6322E288LL,
		0xBE992B5F8BDB8C5CLL,0xFC69CAB42231BACFLL,0x3B78E888D80FE17ALL,0x7988096371E5D7E9LL,0xF7AA4D1A85996083LL,0xB55AACF12C735610LL,0x724B8ECDD64D0DA5LL,0x30BB6F267FA73B36LL,
		0x4AC29F2A07BFD00DLL,0x08327EC1AE55E69ELL,0xCF235CFD546BBD2BLL,0x8DD3BD16FD818BB8LL,0x03F1F96F09FD3CD2LL,0x41011884A0170A41LL,0x86103AB85A2951F4LL,0xC4E0DB53F3C36767LL,
		0xD8A453A01B3A09B3LL,0x9A54B24BB2D03F20LL,0x5D45907748EE6495LL,0x1FB5719CE1045206LL,0x919735E51578E56CLL,0xD367D40EBC92D3FFLL,0x1476F63246AC884ALL,0x568617D9EF46BED9LL,
		0xE085162AB69D5E3CLL,0xA275F7C11F7768AFLL,0x6564D5FDE549331ALL,0x279434164CA30589LL,0xA9B6706FB8DFB2E3LL,0xEB46918411358470LL,0x2C57B3B8EB0BDFC5LL,0x6EA7525342E1E956LL,
		0x72E3DAA0AA188782LL,0x30133B4B03F2B111LL,0xF7021977F9CCEAA4LL,0xB5F2F89C5026DC37LL,0x3BD0BCE5A45A6B5DLL,0x79205D0E0DB05DCELL,0xBE317F32F78E067BLL,0xFCC19ED95E6430E8LL,
		0x86B86ED5267CDBD3LL,0xC4488F3E8F96ED40LL,0x0359AD0275A8B6F5LL,0x41A94CE9DC428066LL,0xCF8B0890283E370CLL,0x8D7BE97B81D4019FLL,0x4A6ACB477BEA5A2ALL,0x089A2AACD2006CB9LL,
		0x14DEA25F3AF9026DLL,0x562E43B4931334FELL,0x913F6188692D6F4BLL,0xD3CF8063C0C759D8LL,0x5DEDC41A34BBEEB2LL,0x1F1D25F19D51D821LL,0xD80C07CD676F8394LL,0x9AFCE626CE85B507LL

	};
	while(BufSize-->0)
	{
		unsigned char ch = *Buf^(unsigned char)CurCRC;
		CurCRC >>= 8;
		CurCRC ^= crctable[ch];
		++Buf;
	}
	return CurCRC;
}


static uint64_t std_crc64(const uint8_t *data, size_t lens)
{
	return ~update_crc64(0xFFFFFFFFFFFFFFFFLL, data, (DWORD)lens);
}

#endif